Field Identification of Dynamic Coefficients of Journal Bearings on Flexible Rotor-Bearing System

Yang Kang, Jiaojiao Ma, Hao Zhang, Zhanqun Shi, Fengshou Gu, Andrew Ball

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The displacements at the bearing locations play an important role in identifying the dynamic coefficients of the journal bearing. In this paper, an identification method for the oil-film dynamic coefficients is presented. First of all, a discrete state-space model of the bearing-rotor system is generated. Secondly, Kalman filter technique is used to obtain the displacements of the bearing locations. Then, these estimated responses are adopted to identify the dynamic coefficients. Finally, a comparison is developed between the identified results and the theoretical value. The results showed that the present method has high accurate for the identification of the dynamic coefficients, especially, for the direct dynamic coefficients.

Original languageEnglish
Title of host publicationAdvances in Asset Management and Condition Monitoring, COMADEM 2019
EditorsAndrew Ball, Len Gelman, B.K.N. Rao
PublisherSpringer, Cham
Pages1273-1284
Number of pages12
Volume166
ISBN (Electronic)9783030577452
ISBN (Print)9783030577445
DOIs
Publication statusPublished - 28 Aug 2020
Event32nd International Congress and Exhibition on Conditioning Monitoring and Diagnostic Engineering Management Conference - University of Huddersfield, Huddersfield, United Kingdom
Duration: 3 Sep 20195 Sep 2019
Conference number: 32
http://www.comadem2019.com/ (Link to Conference Website)

Publication series

NameSmart Innovation, Systems and Technologies
PublisherSpringer
Volume166
ISSN (Print)2190-3018
ISSN (Electronic)2190-3026

Conference

Conference32nd International Congress and Exhibition on Conditioning Monitoring and Diagnostic Engineering Management Conference
Abbreviated titleCOMADEM 2019
CountryUnited Kingdom
CityHuddersfield
Period3/09/195/09/19
Internet address

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